| /* Define _XOPEN_SOURCE to get tempnam prototype with glibc et al -- |
| more general than _INCLUDE_XOPEN_SOURCE used elsewhere `for HP-UX'. */ |
| #define _XOPEN_SOURCE 1 |
| #include "f2c.h" |
| #include "fio.h" |
| #include <string.h> |
| #ifndef NON_POSIX_STDIO |
| #ifdef MSDOS |
| #include "io.h" |
| #else |
| #include "unistd.h" /* for access */ |
| #endif |
| #endif |
| |
| #ifdef KR_headers |
| extern char *malloc(); |
| #ifdef NON_ANSI_STDIO |
| extern char *mktemp(); |
| #endif |
| extern integer f_clos(); |
| #else |
| #undef abs |
| #undef min |
| #undef max |
| #include <stdlib.h> |
| extern int f__canseek(FILE*); |
| extern integer f_clos(cllist*); |
| #endif |
| |
| #ifdef NON_ANSI_RW_MODES |
| char *f__r_mode[2] = {"r", "r"}; |
| char *f__w_mode[4] = {"w", "w", "r+w", "r+w"}; |
| #else |
| char *f__r_mode[2] = {"rb", "r"}; |
| char *f__w_mode[4] = {"wb", "w", "r+b", "r+"}; |
| #endif |
| |
| static char f__buf0[400], *f__buf = f__buf0; |
| int f__buflen = (int)sizeof(f__buf0); |
| |
| static void |
| #ifdef KR_headers |
| f__bufadj(n, c) int n, c; |
| #else |
| f__bufadj(int n, int c) |
| #endif |
| { |
| unsigned int len; |
| char *nbuf, *s, *t, *te; |
| |
| if (f__buf == f__buf0) |
| f__buflen = 1024; |
| while(f__buflen <= n) |
| f__buflen <<= 1; |
| len = (unsigned int)f__buflen; |
| if (len != f__buflen || !(nbuf = (char*)malloc(len))) |
| f__fatal(113, "malloc failure"); |
| s = nbuf; |
| t = f__buf; |
| te = t + c; |
| while(t < te) |
| *s++ = *t++; |
| if (f__buf != f__buf0) |
| free(f__buf); |
| f__buf = nbuf; |
| } |
| |
| int |
| #ifdef KR_headers |
| f__putbuf(c) int c; |
| #else |
| f__putbuf(int c) |
| #endif |
| { |
| char *s, *se; |
| int n; |
| |
| if (f__hiwater > f__recpos) |
| f__recpos = f__hiwater; |
| n = f__recpos + 1; |
| if (n >= f__buflen) |
| f__bufadj(n, f__recpos); |
| s = f__buf; |
| se = s + f__recpos; |
| if (c) |
| *se++ = c; |
| *se = 0; |
| for(;;) { |
| fputs(s, f__cf); |
| s += strlen(s); |
| if (s >= se) |
| break; /* normally happens the first time */ |
| putc(*s++, f__cf); |
| } |
| return 0; |
| } |
| |
| void |
| #ifdef KR_headers |
| x_putc(c) |
| #else |
| x_putc(int c) |
| #endif |
| { |
| if (f__recpos >= f__buflen) |
| f__bufadj(f__recpos, f__buflen); |
| f__buf[f__recpos++] = c; |
| } |
| |
| #define opnerr(f,m,s) \ |
| do {if(f) {f__init &= ~2; errno= m;} else opn_err(m,s,a); return(m);} while(0) |
| |
| static void |
| #ifdef KR_headers |
| opn_err(m, s, a) int m; char *s; olist *a; |
| #else |
| opn_err(int m, char *s, olist *a) |
| #endif |
| { |
| if (a->ofnm) { |
| /* supply file name to error message */ |
| if (a->ofnmlen >= f__buflen) |
| f__bufadj((int)a->ofnmlen, 0); |
| g_char(a->ofnm, a->ofnmlen, f__curunit->ufnm = f__buf); |
| } |
| f__fatal(m, s); |
| } |
| |
| #ifdef KR_headers |
| integer f_open(a) olist *a; |
| #else |
| integer f_open(olist *a) |
| #endif |
| { unit *b; |
| integer rv; |
| char buf[256], *s, *env; |
| cllist x; |
| int ufmt; |
| FILE *tf; |
| int fd, len; |
| #ifndef NON_UNIX_STDIO |
| int n; |
| #endif |
| if(f__init != 1) f_init(); |
| f__external = 1; |
| if(a->ounit>=MXUNIT || a->ounit<0) |
| err(a->oerr,101,"open"); |
| f__curunit = b = &f__units[a->ounit]; |
| if(b->ufd) { |
| if(a->ofnm==0) |
| { |
| same: if (a->oblnk) |
| b->ublnk = *a->oblnk == 'z' || *a->oblnk == 'Z'; |
| return(0); |
| } |
| #ifdef NON_UNIX_STDIO |
| if (b->ufnm |
| && strlen(b->ufnm) == a->ofnmlen |
| && !strncmp(b->ufnm, a->ofnm, (unsigned)a->ofnmlen)) |
| goto same; |
| #else |
| g_char(a->ofnm,a->ofnmlen,buf); |
| if (f__inode(buf,&n) == b->uinode && n == b->udev) |
| goto same; |
| #endif |
| x.cunit=a->ounit; |
| x.csta=0; |
| x.cerr=a->oerr; |
| if ((rv = f_clos(&x)) != 0) |
| return rv; |
| } |
| b->url = (int)a->orl; |
| b->ublnk = a->oblnk && (*a->oblnk == 'z' || *a->oblnk == 'Z'); |
| if(a->ofm==0) |
| { if(b->url>0) b->ufmt=0; |
| else b->ufmt=1; |
| } |
| else if(*a->ofm=='f' || *a->ofm == 'F') b->ufmt=1; |
| else b->ufmt=0; |
| ufmt = b->ufmt; |
| #ifdef url_Adjust |
| if (b->url && !ufmt) |
| url_Adjust(b->url); |
| #endif |
| if (a->ofnm) { |
| g_char(a->ofnm,a->ofnmlen,buf); |
| if (!buf[0]) |
| opnerr(a->oerr,107,"open"); |
| } |
| else |
| sprintf(buf, "fort.%ld", (long)a->ounit); |
| b->uscrtch = 0; |
| b->uend=0; |
| b->uwrt = 0; |
| b->ufd = 0; |
| b->urw = 3; |
| switch(a->osta ? *a->osta : 'u') |
| { |
| case 'o': |
| case 'O': |
| #ifdef NON_POSIX_STDIO |
| if (!(tf = fopen(buf,"r"))) |
| opnerr(a->oerr,errno,"open"); |
| fclose(tf); |
| #else |
| if (access(buf,0)) |
| opnerr(a->oerr,errno,"open"); |
| #endif |
| break; |
| case 's': |
| case 'S': |
| b->uscrtch=1; |
| #ifdef HAVE_MKSTEMP /* Allow use of TMPDIR preferentially. */ |
| env = getenv("TMPDIR"); |
| if (!env) env = getenv("TEMP"); |
| if (!env) env = "/tmp"; |
| len = strlen(env); |
| if (len > 256 - sizeof "/tmp.FXXXXXX") |
| err (a->oerr, 132, "open"); |
| strcpy(buf, env); |
| strcat(buf, "/tmp.FXXXXXX"); |
| fd = mkstemp(buf); |
| if (fd == -1 || close(fd)) |
| err (a->oerr, 132, "open"); |
| #else /* ! defined (HAVE_MKSTEMP) */ |
| #ifdef HAVE_TEMPNAM /* Allow use of TMPDIR preferentially. */ |
| s = tempnam (0, buf); |
| if (strlen (s) >= sizeof (buf)) |
| err (a->oerr, 132, "open"); |
| (void) strcpy (buf, s); |
| free (s); |
| #else /* ! defined (HAVE_TEMPNAM) */ |
| #ifdef _POSIX_SOURCE |
| tmpnam(buf); |
| #else |
| (void) strcpy(buf,"tmp.FXXXXXX"); |
| (void) mktemp(buf); |
| #endif |
| #endif /* ! defined (HAVE_TEMPNAM) */ |
| #endif /* ! defined (HAVE_MKSTEMP) */ |
| goto replace; |
| case 'n': |
| case 'N': |
| #ifdef NON_POSIX_STDIO |
| if ((tf = fopen(buf,"r")) || (tf = fopen(buf,"a"))) { |
| fclose(tf); |
| opnerr(a->oerr,128,"open"); |
| } |
| #else |
| if (!access(buf,0)) |
| opnerr(a->oerr,128,"open"); |
| #endif |
| /* no break */ |
| case 'r': /* Fortran 90 replace option */ |
| case 'R': |
| replace: |
| if (tf = fopen(buf,f__w_mode[0])) |
| fclose(tf); |
| } |
| |
| b->ufnm=(char *) malloc((unsigned int)(strlen(buf)+1)); |
| if(b->ufnm==NULL) opnerr(a->oerr,113,"no space"); |
| (void) strcpy(b->ufnm,buf); |
| if ((s = a->oacc) && b->url) |
| ufmt = 0; |
| if(!(tf = fopen(buf, f__w_mode[ufmt|2]))) { |
| if (tf = fopen(buf, f__r_mode[ufmt])) |
| b->urw = 1; |
| else if (tf = fopen(buf, f__w_mode[ufmt])) { |
| b->uwrt = 1; |
| b->urw = 2; |
| } |
| else |
| err(a->oerr, errno, "open"); |
| } |
| b->useek = f__canseek(b->ufd = tf); |
| #ifndef NON_UNIX_STDIO |
| if((b->uinode = f__inode(buf,&b->udev)) == -1) |
| opnerr(a->oerr,108,"open"); |
| #endif |
| if(b->useek) |
| if (a->orl) |
| rewind(b->ufd); |
| else if ((s = a->oacc) && (*s == 'a' || *s == 'A') |
| && fseek(b->ufd, 0L, SEEK_END)) |
| opnerr(a->oerr,129,"open"); |
| return(0); |
| } |
| #ifdef KR_headers |
| fk_open(seq,fmt,n) ftnint n; |
| #else |
| fk_open(int seq, int fmt, ftnint n) |
| #endif |
| { char nbuf[10]; |
| olist a; |
| int rtn; |
| int save_init; |
| |
| (void) sprintf(nbuf,"fort.%ld",(long)n); |
| a.oerr=1; |
| a.ounit=n; |
| a.ofnm=nbuf; |
| a.ofnmlen=strlen(nbuf); |
| a.osta=NULL; |
| a.oacc= seq==SEQ?"s":"d"; |
| a.ofm = fmt==FMT?"f":"u"; |
| a.orl = seq==DIR?1:0; |
| a.oblnk=NULL; |
| save_init = f__init; |
| f__init &= ~2; |
| rtn = f_open(&a); |
| f__init = save_init | 1; |
| return rtn; |
| } |